| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat exchanger tube made of aluminum which can easily and inexpensively be produced and has sufficient pitting corrosion resistance, and to provide its production method. SOLUTION: The heat exchanger tube (4) made of aluminum is formed of an alloy containing, by mass, 0.90 to 1.50 Mn, and the balance Al with inevitable impurities, and its electric conductivity is controlled to 30 to 43% IACS. A heat exchanger tube stock formed of an alloy comprising 0.90 to 1.50% Mn, and the balance Al with inevitable impurities is heated at 550 to 600°C in an air atmosphere or in an inert gas atmosphere, is held for 10 to 600 min, and is then cooled, so as to produce the heat exchanger tube (4) made of aluminum. COPYRIGHT: (C)2006,JPO&NCIPI |
